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JPL Small-Body Database Browser
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109639 (2001 RA)
Classification: Main-belt Asteroid          SPK-ID: 2109639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09325030598952416 5.1614e-08  
a 2.662775986019934 1.8122e-08 au
q 2.414471310542018 1.3754e-07 au
i 20.93050874158733 7.2147e-06 deg
node 242.4718724466095 1.813e-05 deg
peri 233.4342935863035 5.37e-05 deg
M 310.6904755110342 4.9932e-05 deg
tp 2458817.884556750745
(2019-Nov-30.38455675)
0.00022079 TDB
period 1587.085684587782
4.35
1.6202e-05
4.436e-08
d
yr
n .2268308532399772 2.3157e-09 deg/d
Q 2.911080661497849 1.9812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      6345 days (17.37 yr)  
   first obs. used      2001-08-27  
   last obs. used      2019-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56763  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:41:43  

Additional Information
 Earth MOID = 1.47427 au 
 Jupiter MOID = 2.45562 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO459513  

109639 (2001 RA)          Discovered 2001-Sep-02 by Hug, G. at Farpoint
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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